Manual
Overview of Engel Smart Battery Box Features
Q. Can I charge the battery and power a device at the same time?
A. Yes, the Engel Smart Battery Box is designed to do this.
Q. Why doesn’t my Engel Smart Battery Box go into charge cycle?
A. AC adaptor could be blown and needs replacing.
Q. When I connect my laptop AC adaptor to the AC outlet an alarm sounds with two
beeps, why is that?
A. For some laptop adaptors the in-rush current can trigger the alarm and the internal
inverter will protect itself. The issue can be overcome by turning the Engel Smart
Battery Box AC outlet on first (so green LED is lit), then turning on the laptop and finally
connecting the laptop adaptor to the laptop and Engel Smart Battery Box AC outlet.
Q. My 240V outlet keeps blowing the 30A fuse, why is that?
A. The device you have plugged into the 240V outlet is unsuitable (could be too
powerful) and has damaged the internal inverter.
Q. Can I install the Engel Smart Battery Box into my vehicle as part of a dual battery
installation?
A. Yes you can however, you will need a dual battery wiring kit installed into your
vehicle. We recommend you get this kit installed by a qualified auto electrician. You
can connect the dual battery wiring loom to the Engel Smart Battery Box either via the
external terminals or the Anderson socket. Please remember the main isolator switch
must be in the “on” position. The Engel Smart Battery Box cannot be mounted into the
vehicle’s engine bay.
Q. Can I charge the battery using solar panels?
A. Yes you can as long as the main isolator switch is in the “on” position. This type of
charging is not controlled by the on-board microprocessor since the charge current will
flow direct to the battery via the main isolator switch. If an external voltage regulator is
not used there is a risk of overcharging and damaging the battery.
Q. Why is the time remaining value often different to the actual time taken?
A. The predicted time remaining value is an estimate only. The time prediction is
affected by many variables such as temperature, battery age and battery type and it is
impossible for it to be completely accurate but it is a useful guide.
Q. Is it possible for the Engel Smart Battery Box to power a device if it is turned off
at the control panel?
A. Yes, it is, since the various output socket are connected direct to the battery via the
main isolator switch and not via the smart charger. However it will not be possible to
determine the battery voltage or the time remaining if this is done.
Control panel and LCD display
12V Lead acid battery
(not supplied)
Latch
External AC/DC
Power Supply
Black negative
cable to battery
Red positive cable
to battery
Mounting kit
(not supplied)
Car Charging Lead
(included)
Main (battery) isolator switch
with removable key
External positive and
negative terminals
24V DC input socket
for AC/DC power
supply unit
Fuses for main
charger, 240V socket
and 12V accessory sockets
12V DC 50A Anderson socket
300W inverter with
240V AC Socket & USB Port
Carry handle
12V 10A Accessory socket
& Engel socket
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